py.test fixture for creating a virtual environment
Project description
pytest-venv is a simple pytest plugin that exposes a venv fixture. The fixture is used to create a new virtual environment which can be used to install packages and run commands inside tests.
Usage
import os
def test_it(venv):
venv.install('pyramid', upgrade=True)
subprocess.check_call(
[os.path.join(venv.bin, 'pserve'), 'development.ini'],
)
API
The venv fixture is an instance of pytest_venv.VirtualEnvironment(path) which exposes the following API:
path
The path to the virtualenv directory.
bin
The path to the bin / Scripts directory.
python
The path to the python executable in the virtualenv.
create(system_site_packages=False, python=None, *, extra_args=None)
Create a virtualenv. This is called automatically by the venv fixture. If python is None then the virtual environment will be created using the same executable as the active runtime.
install(pkg_name, editable=False, upgrade=False, *, extra_args=None)
Use pip to install a package into the virtualenv. pkg_name may be a path to a package on disk.
get_version(pkg_name, *, raises=True)
Returns a packaging.version.Version object which is sortable and convertable to a string.
0.3 (2023-11-22)
Drop Python 2.7, 3.4, 3.5, 3.6.
Add support for Python 3.9, 3.10, 3.11, 3.12.
No longer expect pkg_resources to be available in the created virtualenv.
No longer depend on setuptools.
Add extra_args to install() and create() to pass extra arguments to the underlying commands.
Add raises=False option to get_version() to avoid raising an exception if a package is not installed.
0.2.1 (2020-08-04)
Depend directly on pytest. See https://github.com/mmerickel/pytest-venv/pull/2
Add support for Python 3.6, 3.7, and 3.8. See https://github.com/mmerickel/pytest-venv/pull/2
0.2 (2016-11-27)
Add VirtualEnvironment.get_version for querying versions from installed packages in the virtual environment.
Support custom python interpreter paths via VirtualEnvironment.create(python=...).
0.1.1 (2016-11-27)
Ensure the virtual environment is started with the same Python executable as the current process.
0.1 (2016-11-27)
Initial release.
Project details
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